49-696 25mm Dia. UVFS Aspheric Lens; EFL=30mm; NA=0.42 UV 250-425nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 30 mm
- BFL
- 24.17 mm
- R1
- 13.75 mm
- R2
Material
- Name
- HPFS7980
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4584656081538023
- λ
- 587.6 nm
- B1
- 0.683740494
- C1
- 0.00460352869 μm2
- B2
- 0.420323613
- C2
- 0.0133968856 μm2
- B3
- 0.58502748
- C3
- 64.4932732 μm2
49-696 25mm Dia. UVFS Aspheric Lens; EFL=30mm; NA=0.42 UV 250-425nm
This is a 25mm diameter aspheric lens, catalog number 49-696, offered by Edmund Optics. The lens is made from UV fused silica, specifically Corning's syn hpfs7980, and features a UV coating suitable for the wavelength range of 250-425nm. The lens has a numerical aperture (NA) of 0.42 and an effective focal length (EFL) of 30mm, making it suitable for a variety of optical applications.
The lens geometry includes an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 2.21mm. The front surface of the lens has an aspheric shape with a radius of curvature (R1) of 13.754mm and a conic constant (K1) of -2.050191. The lens has a center thickness of 8.5mm and a back focal length (BFL) of 24.17mm.
The lens is coated with a UV coating on both the front and back surfaces, specifically the EDM UV 250-425nm coating. This coating enhances the lens's performance in the specified UV range. The lens is circular in shape and is available for purchase through the Edmund Optics website, which currently lists it as in stock.
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